Sect. I1 Page 1
SECTION II
OPERATING INSTRUCTIONS
2-1 INSPECTION OUTPUT
This group consists of three terminals. The one
After the instrument is unpacked, the instrument marked "G" is connected directly the to instrument
should be carefully inspected for damage received chassis. The other two terminals, vertically aligned,
in transit. If any shipping damage is found, follow are the OUTPUT terminals. With respect to the
the procedure outlined in the "Claim for Damage in ground terminal each of these outputs has equal
Shipment" page at the back of the instruction book. magnitude of signal, but they are 180" out of phase
with each other. The internal impedance between
the two OUTPUT terminals is appmximately 40 ohms.
2-2 CONTROLS AND TERMINALS
SYNC OUT
RANGE The Sync Out terminals are single-ended and have
This switch is used to select the desired frequency an internal impedance of about 2,000 ohms.
range to be covered by the frequency dial.
Power Cable
FUNCTION The three-conductor cable power is supplied with
This switch is used to select any one of the three a three-prong plug. The third prong is a round
types of output waveform. off -set pin which provides a chassis ground. An
adapter may be obtained to permit use of this plug
with two-conductor receptacles.
FREQUENCY
This dial is calibrated directly in cycles per second
for the X1 frequency range of the oscillator. The
knob just below the dial escutcheon is directly con-
2-3 230-VOLT OPERATION
nected to the frequency varying element. The lower
knob is a mechanical vernier for fine adjustment This instrument is shipped from the factory with
of the frequency. the power transformer primaries connected in
parallel for 115 v operation, unless otherwise spec-
ified on the order. If 230 v operation is desired, the
AMPLITUDE primaries will have to be connected in series as
This control adjusts the amplitude of the oscillator shown in "Transformer Details" on the schematic
voltage admitted to the amplifier and, therefore, the wiring diagram of the Power Supply Section.
output of .the instrument. This control is calibrated
from 0 to 100 in arbitrary units.
2-4 OPERATION
POWER
This toggle switch controls the power supplied to The following step-by-step procedure should be
the instrument from the power line. used as a guide when operating this instrument.
1) Turn the POWER switch to ON. Allow thirty
FUSE seconds for oscillations start. to The instrument
The fuseholder, which is located on the panel, con- will operate nearly within specifications after a
tains the power line fuse. Refer to the Table of few minutes warm-up. It will be within specifi-
Replaceable Parts for the correct fuse rating. cations after 30 minutes. |
ACEC
HEWLETT-PACKARD
